Chrysler Voyager ES 3.3 starts badly

Good evening Chrysler municipality. My baby, a Chrysler Voyager ES 3.3L V6 163 hp from 1994 with a mileage of 313.000Km has the following problem: When I start it, it takes a little moment to start it. Furthermore, it has a kind of detonator so from 2000 rpm but only if I speed it up “fast”. If I slow it down. I have already made the spark plugs, candle cables and ignition coil as well as the map sensor (crank wave sensor) however no improvement. Do you think there could be a problem with the fuel supply? Maybe fuel filter is dirty? Injection nozzles broken/dreamed? Fuel pump defective? That would be the only thing that hasn’t been exchanged for this vehicle in my possession. Be a mileage of 199,000Km in our family and always satisfied with the thick.